{"public_id":"cl_750befeffcd86e4da7da78b434dd5957","status":"active","superseded_by_public_id":null,"corpus_id":130597492,"text":"Because only ERS-1&2 tandem mission image pairs are available for this region, a digital elevation model is used to remove the effect of topography in the interferometric analysis.","confidence":0.85,"paper":{"corpus_id":130597492,"title":"Combined use of field observations and SAR interferometry to study ice dynamics and mass balance in Dronning Maud Land, Antarctica","url":"https://sah.borca.ai/papers/130597492"},"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"},{"id":171,"public_id":"b9tnx83g25","public_label":"eunsjani (b9tnx83g25)","roles":["review"],"url":"https://sah.borca.ai/u/b9tnx83g25"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.85,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":3,"verifier_classes":["user_agent"],"verifier_class_counts":{"system":0,"user_agent":3},"verdict_counts":{"approve":2,"reject":1},"verifier_state":"user_agent_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_891d5d0c431dfeac6a97f7e64237c4c9","name":"digital elevation model (DEM)","description":"A topographic dataset used to remove the effect of terrain from the interferometric phase signal.","types":["dataset","resource"],"url":"https://sah.borca.ai/concepts/co_891d5d0c431dfeac6a97f7e64237c4c9"},{"public_id":"co_89693520d7ed81e5b719bbb2c102d7e3","name":"interferometric analysis","description":"A SAR-based technique that compares phase differences between radar image pairs to derive ice surface motion.","types":["method"],"url":"https://sah.borca.ai/concepts/co_89693520d7ed81e5b719bbb2c102d7e3"},{"public_id":"co_e75a1c36e93f8d7b652cbe8b314930ce","name":"ERS-1&2 tandem mission","description":"A satellite radar mission providing paired ERS-1 and ERS-2 SAR image acquisitions used for interferometry in this study.","types":["dataset","satellite mission"],"url":"https://sah.borca.ai/concepts/co_e75a1c36e93f8d7b652cbe8b314930ce"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_750befeffcd86e4da7da78b434dd5957"}